The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2006
Filed:
Oct. 31, 2003
Thomas James Gallagher, Lake Orion, MI (US);
Hong Jiang, Lake Orion, MI (US);
Sergei Kolomeitsev, Rochester, MI (US);
John R. Suriano, Auburn Hills, MI (US);
Joseph P. Whinnery, Pontiac, MI (US);
Thomas James Gallagher, Lake Orion, MI (US);
Hong Jiang, Lake Orion, MI (US);
Sergei Kolomeitsev, Rochester, MI (US);
John R. Suriano, Auburn Hills, MI (US);
Joseph P. Whinnery, Pontiac, MI (US);
Valeo Electrical Systems, Inc., Auburn Hills, MI (US);
Abstract
A control system for an electric motor. Field Oriented Control, FOC, uses a digital control system, and attempts to maintain the rotating stator magnetic field ninety degrees ahead of the rotor field, in order to maximize torque. However, if a three-phase motor is used, which is very common, large amounts of computation are required, to convert from a three-phase coordinate system to an orthogonal coordinate system. The invention replaces the three-phase motor with a two-phase motor, which has been found to impose certain additional costs, but also provides benefits.